EFFECTS OF SM2O3 AND GD2O3+ND2O3 ON ELECTROMECHANICAL PROPERTIES OF PBTIO3 CERAMICS

被引：13
|
作者：
XUE, WR
SCHULZE, WA
NEWNHAM, RE
机构：
[1] Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 06期
关键词：
electromechanical properties; gadolinium; lead titanate; neodymium; samarium;
D O I：
10.1111/j.1151-2916.1990.tb09834.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The electromechanical properties of PbTiO3 ceramics, modified by substitution of Sm or Gd + Nd (same average atomic radius as Sm) for Pb, were studied in the range of 6% to 14% substitution. The modified PbTiO3 ceramics were stable, and the Curie temperature decreased linearly over this composition range. The 10% Sm composition had a large anisotropy in the coupling factor ratio, kt/kp, and a similar, but weaker, effect developed for 12% (1/2 Gd + 1/2 Nd). This indicates that other than average ion size may influence the electromechanical coupling factor ratio. Copyright © 1990, Wiley Blackwell. All rights reserved
引用
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页码：1783 / 1784
页数：2
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